COMPLEX
COMPLEX: "-0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
DEFAULT
DEFAULT: "0123456789abcdefghijklmnopqrstuvwxyz"
ONLY_CHAR
ONLY_CHAR: "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
ONLY_NUMBER
ONLY_NUMBER: "0123456789"
字符集